All DeGolyer Competition Exhibits
The First Helen Warren DeGolyer Competition, 1997
The Second Helen Warren DeGolyer Competition, 2000
The Third Helen Warren DeGolyer Competition, 2003
The Fourth Helen Warren DeGolyer Competition, 2006
The Fifth Helen Warren DeGolyer Competition, 2009
The Sixth Helen Warren DeGolyer Competition, 2012
The Seventh Helen Warren DeGolyer Competition, 2015